I don't want to guess. At the Singapore conference, the public results released were not very encouraging, as they said there was only a 6 month gap before transfusions were needed again. However, what I was told privately was different and far more positive. I think we'll have to wait for official reports.
Since Dr Sadelain is the true pioneer and in my opinion, has the best grasp of the process, I truly believe we will have to wait until his trials start this spring to see how much we can expect from gene therapy.